package cn.itcast.erp.interceptor;

import cn.itcast.erp.entity.Emp;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

@Component
public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        HttpSession session = request.getSession();
        Emp emp = (Emp) session.getAttribute("emp");

        if (emp != null) {
            return true;

        } else {
            response.sendRedirect("/login.html");
            return false;

        }


    }

}
